Comment 17 for bug 1882890

Ok it worked.

1)
I went here: https://launchpad.net/ubuntu/+source/intel-microcode
to check what version of intel-microcode to downgrade to. Basically I wanted the previous one that had no issues.

2)
I used an ubuntu-live-usb to chroot into my yoga 710-11ISK laptop (intel m3-6Y30)

3)
$ sudo apt-get purge --auto-remove intel-microcode

4)
$ sudo apt install -y intel-microcode=3.20191115.1ubuntu3
That's the version from point 1 above

5)
I was unable to update-initramfs for some reason while in chroot
I noticed that ~1/7 reboots into recovery would work; don't know why. But I found out the hard way trying to figure out what the heck had gone wrong banging my head reboot after reboot!
Anyway once in recovery mode I...
  $ sudo update-initramfs -u

6) I rebooted and logged-in multiple times to ensure problem is gone. Including from powered-off state.
Awesome!

7) Ubuntu's package management will want to install the newest cr@p intel-microcode (I swear I'm getting AMD next time)...
$ sudo apt-mark hold intel-microcode
That holds the package from upgrading until the microcode is fixed. I don't think Ubuntu can fix this, it will have to be Intel.

I hear Lenovo are now selling Ubuntu certified AMD laptops!... hmmm